A software package which simulates Thomson's famous
experiment which succeeded in finding the charge to mass ratio for a beam of electrons (cathode rays) is available from the firm
The Logical
Interface. The method of using this software is described in a
paper given to the University of Sydney Science Teachers' Workshop.

The Age of Siliconby Andre van Schaik and Richard Coggins,
given to the 9th Biennial Science Teachers' Workshop, "The New
Physics HSC Syllabus", mounted by the School of Physics,
University of Sydney, June 15-16, 2000, was written to be of
specific use for Optional Module 9.9 of the syllabus (The Age
of Silicon). However, it is also an excellent source of
information for most parts of this topic. http://science.uniserve.edu.au/school/curric/stage6/phys/silicon/silicon.pdf

Semiconductors - from Materials Science and Technology
Teacher's Workshop, prepared by the Materials Science and Engineering department at the
University of Illinois, Urbana/Champaign http://matse1.mse.uiuc.edu/~tw/sc/sc.html

Conductors, Insulators, and Semiconductors - from Materials Science and Technology
Teacher's Workshop, prepared by the Materials Science and Engineering department at the
University of Illinois, Urbana/Champaign
http://matse1.mse.uiuc.edu/~tw/sc/prin.html

Doping: n-type and p-type semiconductors

An Introduction to Microelectronics Manufacturing and Markets - fromUniversity of California, Berkeley. This hypermedia course reviews the evolution of today's microelectronic integrated circuit (IC) chip technology, explains how IC's are made, and describes the present-day IC markets. This course is designed for people with little or no background in these areas.http://bmrc.berkeley.edu/courseware/ICMfg92/

History Snapshots has a page devoted to the early experiments on the photoelectric effect, and the question of whether it was Hertz or his pupil Hallwachs who discovered the effect, see http://www.acolyte.co.uk/origins/herz.html.

Superconductor Information for the Beginner - maintained by a private individual but it has a particularly comprehensive page devoted to the uses of superconductorshttp://superconductors.org/Uses.htm

Student investigations and experiments

A Teacher's Guide to Superconductivity for High School Students - contains instructions
for dealing with liquid nitrogen, as well as comprehensive lists
of the materials needed for various student activities, originates from someone at the Oak Ridge National Laboratory,
supported by the (US) Department of Energyhttp://www.ornl.gov/info/reports/m/ornlm3063r1/contents.html